[OpenSIPS-Users] NATed REGISTERs are failing

Bogdan-Andrei Iancu bogdan at voice-system.ro
Thu Oct 30 11:52:04 CET 2008

Hi Iñaki,

Keep in mind that SER started before RFC3261 :) - and there are a lot of 
things (like such params) that made sense in the pre RFC3261 world.
Now, I agree with your logic and I see no reason for having  

Maybe we can remove this option to avoid any further issues like this one.


Iñaki Baz Castillo wrote:
> El Miércoles, 29 de Octubre de 2008, Bogdan-Andrei Iancu escribió:
>> By any chance, do you have a "reply_to_via=1" in your config (in the
>> global parameter block) ?
> But anyway... why should be Via sent-by be used to send the response?
> RFC 3261 says clearly that if a proxy receives a request in which Via sent-by 
> differs from real source address, then "received=PUBLIC_IP" must be added to 
> top Via.
> If the request is forwarded stateless, when the reply arrives it must be sent 
> to the "received" address (if it exists).
> AFAIK "reply_to_via=1" is needed for implementing a stateless proxy with 
> OpenSIPS, isn't it? But in that case, the responses must be sent 
> to "received" address when present.
> Am I wrong?

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